What is this THING?

[patrickstar]

I have no idea how to describe it so I took some pictures. I just found this thing moving around my rock and cleaning it (I think). I have a turban snail but this thing does not have a shell. HELP

 

[Crystal A]

Google stomela snail. Normal hitchhiker that is harmless.

 

[mr_X]

Google stomela snail. Normal hitchhiker that is harmless.

beneficial even. (Stomatella)

 

[patrickstar]

I started looking around and I found some more strange things one is a tube looking thing, ones a bunch or small white swirls on my live rock, and I don't know how to describe the last one.

 

[mr_X]

Sponge like species and Vermetid snail.

 

[patrickstar]

One more thing, what is this? And thank you

 

[patrickstar]

And what's this?

 

[Crystal A]

Thanks Mr x my spelling sucks. Lol

 

[mr_X]

The top I don't know and the bottom appears to be a coral skeleton.